SELF-ADAPTIVE TUNING SYSTEM, APPARATUS, AND METHOD FOR USE IN WIRELESS ELECTRIC ENERGY TRANSMISSION

Abstract:

A self-adaptive tuning circuit system, apparatus, and method for use in a wireless electric energy transmission system comprising an inductor and a capacitor. The input may be configured to receive an alternating current (AC) power supply. An RC circuit may comprise a resistor and a power supply capacitor, a first diode being configured to be positively biased when the AC power is positive in order to charge the power supply capacitor, and the second diode being configured to be positively biased when the AC power is negative in order to minimise the power discharge from the power supply capacitor. The provided tuning logic is used for controlling the power from the power supply capacitor to the tuning circuit comprising a tuning capacitor and a switch apparatus, the tuning circuit being configured to be connected in parallel with a capacitor of a wireless power transmission system.